Content and Characteristics of Vitamin B12 in Some Seaweeds
スポンサーリンク
概要
- 論文の詳細を見る
The vitamin B12 (B12) content in seven species of seaweed that are consumed frequently in Hokkaido, Japan, was microbiologically measured using Escherichia coil 215. Asakusanori (Porphyra tenera), maruba-amanori (Porphyra suborbiculata) and akaba-gin-nansou (Rhodogtossum pulcherum) showed higher B12 content than the other species, although the content varied greatly among samples in the same species. A bioautography on a thin-layer plate holding a mixture of silica gel and cellulose, differentiation of B12 and its analogues using a binding specificity of intrinsic factor and haptocorrin, and comparison of the B12 concentra tion determined by the radioisotope dilution assay method using the intrinsic factor as the B12-binding protein with that by the bioassay method, predominantly showed B12 in maruba-amanori and B12 analogues in wakame (Undaria pinnatifida) and akaba-gin-nansou. The B12 uptake of akaba-gin-nansou from artificial seawater was similar to that of asaku sanori that contained only B12.
- 財団法人 学会誌刊行センターの論文
著者
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Narita Yuki
Department Of Applied Chemistry And Biotechnology Faculty Of Enginnering Fukui University
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FUKUDA Morimichi
Department of Ultrasound & Medical Diagnosis, Sapporo Medical College
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Yamada Shoji
Department Of Dental Pharmacology School Of Dentistry Showa University
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SHIBATA Yoshie
Department of Home Economics, Faculty of Education, Hokkaido University of Education
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TAKAYAMA Mitsue
Department of Home Economics, Faculty of Education, Hokkaido University of Education
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SUGAWARA Kumiko
Department of Life Science, Faculty of Home Economics
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Yamada Shoji
Department of Cellular Neurobiology, Brain Research Institute, Niigata University
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FUKUDA Morimichi
Department of Laboratory Diagnostic Ultrasound and Medical Electronics, School of Medicine, Sapporo Medical University
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NARITA Yuki
Department of Home Economics, Faculty of Education, Hokkaido University of Education
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